Minh, Dao Duy, et al. “The Dynamics of Livelihood Vulnerability Index at Farm Household Level: An Empirical Analysis of the Coastal Sandy Zone in Thua Thien Hue Province, Vietnam”. International Journal of Economics and Financial Issues, vol. 9, no. 5, Sept. 2019, pp. 77-89, https://econjournals.com./index.php/ijefi/article/view/8250.